GPT-5 Upgrade Guide: Which ChatGPT Plan Should You Choose?

The Problem with GPT-5 OpenAI dropped GPT-5 in August 2025. Eight months later, we&rsquo;re at version 5.4. The model family has exploded from a simple two-tier system to a four-tier pricing structure with more variants than most people can keep track of. If you&rsquo;re not following AI news daily, figuring out which model to use — let alone which subscription tier — is genuinely confusing. This…